Abstract: Described is a method of optimizing tire pressures in order to obtain maximum tire tread life and performance. The method involves calculation of the live and dead loads on each individual tire of the vehicle. Grown diameter of the tires in use is obtained from published data sheets. The grown diameter is then multiplied by an empirically derived tread length determining factor to obtain an optimum tread length in contact with the road surface. In turn the tread length is multiplied by effective tread width to obtain a footprint area for the tires. Finally, the load carried by the individual tires is divided by the footprint area to obtain an optimum inflation pressure.

Abstract: Described is a method of optimizing tire pressures in order to obtain maximum tire tread life and performance. The method involves calculation of the live and dead loads on each individual tire of the vehicle. Grown diameter of the tires in use is obtained from published data sheets. The grown diameter is then multiplied by an empirically derived tread length determining factor to obtain an optimum tread length in contact with the road surface. In turn the tread length is multiplied by effective tread width to obtain a footprint area for the tires. Finally, the load carried by the individual tires is divided by the footprint area to obtain an optimum inflation pressure.

Abstract: A new and unique connector adapter shutter door assembly retrofitable to many existing connector adapters or receptacles which becomes a part of the same by connectedly fitting or snapping into place. The shutter door assembly can be used as a safety device to prevent laser light from escaping when a connector is removed from an adapter or receptacle. Because of the ease with which the shutter door assembly can be retrofitted to existing adapters, it is possible to selectively install the shutter door assembly only when a safety hazard is present. Also the shutter door assembly can be used to shield a connector end to prevent foreign matter, such as dust and dirt, from entering the connector. The shutter door assembly is a molded one-piece structure and has inwardly hinged doors permitting one hand connector insertion and withdrawal. The streamline design of the shutter door assembly takes very little space when in use making it desirable for typical space constrained applications.

Abstract: A non-interference method of determining the frequency characteristics of a cable television (CATV) system adds an RF test pulse to an RF video signal in the vertical interval between equalizer pulses. A gated receiver coupled to the distribution system receives the RF video signal only during the vertical interval and extracts the envelope of the RF test pulse, with the sync pulses being attenuated. RF pulses of different frequencies within each channel of the CATV system are used to determine the frequency characteristics of each channel.

Abstract: The invention is a multiglazed window and a spacer element for the window. The spacer element is made in the form of an elongated body member of generally rectangular cross section. This has an elongated interior chamber located along its longitudinal axis. The chamber is partitioned by a flexible diaphragm into two separate chambers. One of these chambers is in communication through longitudinally spaced-apart apertures with the interior volume of the window. The other chamber is in communication through similar apertures with the outside environment. the diaphragm is preferably of S-shaped configuration having a cross sectional length which corresponds to half of the circumference of the interior chamber. As pressure changes occur between the gas within the window and the outside environment the diaphragm will reform to accommodate the resulting volume change. This maintains equal interior and exterior pressures preventing glass deformation.

Abstract: The invention is a multiglazed window and a spacer element for the window. The spacer element is made in the form of a flexible, resilient elongated body member of generally rectangular cross section. This has an elongated interior chamber located along its longitudinal axis. The chamber is partitioned by a flexible diaphragm into two separate chambers. One of these chambers is in communication through longitudinally spaced-apart apertures with the interior volume of the window. The other chamber is in communication through similar apertures with the outside environment. The diaphragm is preferably of S-shaped configuration having a cross sectional length which corresponds to half of the circumference of the interior chamber. As pressure changes occur between the gas within the window and the outside environment the diaphragm will reform to accommodate the resulting volume change. This maintains equal interior and exterior pressures preventing glass deformation.

Abstract: A device and method of orienting a log in a veneer lathe charger to produce optimum positioning of the log in a veneer lathe when the log is loaded into the lathe by the charger includes a plurality of ultrasonic transducers which are positioned circumferentially and longitudinally about the log periphery. The ultrasonic transducers sense the position of the log and the log is re-oriented, under control of a computer which receives the outputs from the transducers, prior to loading the log into the veneer lathe.

Abstract: A pair of sonic transducers are mounted above a peeler block on a veneer lathe, adjacent opposite ends of the block. Bursts of sonic energy are directed downward to strike the surface of the block such that sonic energy is reflected from the block surface to the transducers. The distance from the transducers to the axis of rotation of the lathe spindle upon which the block is mounted is known and, as a consequence, the radius of the peeler block may be determined in response to the ultrasonically measured distance from the transducers to the block surface. A series of radius measurements may be made as the block is rotated on the lathe spindle. Additionally, measurements may be made when a log is first loaded onto the lathe, after the log is rounded up, and after peeling of the block is completed.